EP3504917A1 - Pucch court dans des réseaux nr - Google Patents

Pucch court dans des réseaux nr

Info

Publication number
EP3504917A1
EP3504917A1 EP17850296.9A EP17850296A EP3504917A1 EP 3504917 A1 EP3504917 A1 EP 3504917A1 EP 17850296 A EP17850296 A EP 17850296A EP 3504917 A1 EP3504917 A1 EP 3504917A1
Authority
EP
European Patent Office
Prior art keywords
sequence
different
sequences
uci
different sequences
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP17850296.9A
Other languages
German (de)
English (en)
Other versions
EP3504917A4 (fr
Inventor
Jia-Xian Pan
Xiu-sheng LI
Pei-Kai Liao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MediaTek Inc
Original Assignee
MediaTek Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MediaTek Inc filed Critical MediaTek Inc
Publication of EP3504917A1 publication Critical patent/EP3504917A1/fr
Publication of EP3504917A4 publication Critical patent/EP3504917A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0055—ZCZ [zero correlation zone]
    • H04J13/0059—CAZAC [constant-amplitude and zero auto-correlation]
    • H04J13/0062—Zadoff-Chu
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • H04J13/14—Generation of codes with a zero correlation zone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying

Definitions

  • the present disclosure is generally related to wireless communicationsand, more particularly, to combined coding design for short physical uplink control channel (PUCCH) in New Radio (NR) networks.
  • PUCCH physical uplink control channel
  • NR New Radio
  • the PUCCH has long duration of fourteen orthogonal frequency-division multiplexing (OFDM) symbols. This implies that latency can be at least fourteen OFDM symbols long.
  • OFDM orthogonal frequency-division multiplexing
  • short PUCCHs of one-symbol length and two-symbol length are adopted, along with the option of long PUCCH.
  • the duration of PUCCH is reduced from fourteen OFDM symbols to one or two OFDM symbols, latency is also reduced.
  • there are few uplink OFDM symbols in self-contained subframes and self-contained subframes do not have enough OFDM symbols to support fourteen-symbol PUCCH.
  • the present disclosure proposes schemes and concepts that provide various one-symbol PUCCH formats to realize short PUCCH in NR networks.
  • the proposed schemes and concepts also provide a PUCCH format with multiple transmitting antennas. Additionally, the proposed schemes and concepts provide a two-symbol PUCCH format.
  • a method may involve a processor of a UE configuring a short PUCCH comprising one or two OFDM symbols.
  • the method may involve the processor determining uplink control information (UCI) to be transmitted to a node of a wireless communication network, with the UCI being in one of a plurality of UCI states.
  • the method may also involve the processor selecting a sequence from a plurality of different sequences each of which representative of a respective one of the plurality of UCI states.
  • the method may further involve the processor transmitting the selected sequence in the short PUCCH to the node without a reference signal (RS) .
  • RS reference signal
  • a method may involve a processor of a UE configuring a short PUCCH comprising one or two OFDM symbols.
  • the method may involve the processor generating a reference signal (RS) using a first sequence and generating uplink control information (UCI) using a modulation of a second sequence, with the UCI being in one of a plurality of UCI states.
  • the method may also involve the processor performing either of: (1) selecting a sequence from a plurality of different sequences each of which representative of a respective one of the plurality of UCI states; or (2) selecting a modulation scheme from a plurality of different modulation schemes each of which representative of a respective one of the plurality of UCI states.
  • the method may involve the processor transmitting, using frequency division multiplexing (FDM) , the selected sequence or the UCI with the selected modulation scheme in the short PUCCH with the RS.
  • FDM frequency division multiplexing
  • a method may involve a processor of a UE configuring a short PUCCH comprising one or two OFDM symbols.
  • the method may involve the processor generating a reference signal (RS) using a first sequence and generating uplink control information (UCI) using a modulation of a second sequence, with the UCI being in one of a plurality of UCI states.
  • the method may also involve the processor performing either of: (1) selecting a sequence from a plurality of different sequences each of which representative of a respective one of the plurality of UCI states; or (2) selecting a modulation scheme from a plurality of different modulation schemes each of which representative of a respective one of the plurality of UCI states.
  • the method may involve the processor transmitting, using code division multiplexing (CDM) , the selected sequence or the UCI with the selected modulation scheme in the short PUCCH with the RS.
  • CDM code division multiplexing
  • FIG. 1 is a diagram of an example design and an example scenario in accordance with an implementation of the present disclosure.
  • FIG. 2 is a diagram of an example design as well as example scenarios in accordance with an implementation of the present disclosure.
  • FIG. 3 is a diagram of an example design and an example scenario in accordance with an implementation of the present disclosure.
  • FIG. 4 is a diagram of an example design and an example scenario in accordance with an implementation of the present disclosure.
  • FIG. 5 is a diagram of an example design and an example scenario in accordance with an implementation of the present disclosure.
  • FIG. 6 is a diagram of example scenarios in accordance with an implementation of the present disclosure.
  • FIG. 7 is a block diagram of an example systemin accordance with an implementation of the present disclosure.
  • FIG. 8 is a flowchart of an example process in accordance with an implementation of the present disclosure.
  • FIG. 9 is a flowchart of an example process in accordance with an implementation of the present disclosure.
  • FIG. 10 is a flowchart of an example process in accordance with an implementation of the present disclosure.
  • the goal of a short PUCCH is to transmit uplink control information (UCI) , which can include acknowledgements (ACK) , negative acknowledgements (NACK) and scheduling requests (SR) .
  • UCI uplink control information
  • ACK acknowledgements
  • NACK negative acknowledgements
  • SR scheduling requests
  • the ACK, NACK and SR may be transmitted simultaneously or, alternatively, transmitted separately.
  • the UCI may include ACK/NACK only, SR only, or ACK/NACK and SR.
  • the ACK/NACK and SR may determine modulated symbol (s) , base sequence (s) , cyclic shift (s) , and the resource block (s) (RB) in which the PUCCH is transmitted.
  • a first format of the proposed one-symbol PUCCH formats is herein referred as sequence selection without reference signal (RS) .
  • the UCI may determine the sequence in which to transmit without transmitting the RS.
  • the UCI may determine the following information: base sequence cyclic shift ⁇ , and RB in which the PUCCH is transmitted.
  • a cyclic shift sequence may be generated according to ⁇ as follows:
  • the transmitting signal in a RB may be expressed as follows:
  • the transmitting signal x may then be put in all RBs in a RB set
  • FIG. 1 illustrates an example design 100 and an example scenario 150 in accordance with an implementation of the present disclosure.
  • Part (A) of FIG. 1 shows example design 100
  • part (B) of FIG. 1 shows example scenario 150 of how the transmitting signal x may be put in all RBs in a RB set
  • information of ACK/NACK and SR may be taken as input for cyclic shift selection (to provide ⁇ ) , base sequence selectin (to provide ) and RB selection (to provide ) .
  • ⁇ as input for cyclic shift sequence
  • the result d, along with is used as input for base sequence cyclic shift to provide the transmitting signal x.
  • the transmitting signal x may then be put in RB set with RB allocation as shown in example scenario 150.
  • the base sequence may be independent of UCI and may be configured by a base station (e.g., eNB, gNB or transmit-and-receive point (TRP) ) .
  • the cyclic shift ⁇ may be determined by ACK/NACK, where ⁇ 0 may be configured by the base station.
  • cyclic shift ⁇ may be expressed as follows:
  • the cyclic shift ⁇ may be expressed as follows:
  • the cyclic shift ⁇ may be expressed as follows:
  • the cyclic shift ⁇ may be expressed as follows:
  • the RB set may be determined as follows:
  • n RB may be configured by the base station.
  • the base sequence may be independent of UCI and may be configured by a base station.
  • cyclic shift ⁇ may be expressed as follows:
  • the cyclic shift ⁇ may be expressed as follows:
  • the cyclic shift ⁇ may be independent of UCI, and may be configured by the base station.
  • the RB set may be determined as follows:
  • n RB may be configured by the base station.
  • the portion of UCI indicating or otherwise representing the ACK/NACK information and/or SR information may be in one of multiple states, depending on the actual bits indicating/representing the ACK/NACK information.
  • each of the multiple states of UCI may be represented by a corresponding sequence of multiple sequences that are different from each other.
  • the sequence corresponding to the given state of UCI may be transmitted in lieu of the actual UCI information.
  • a sequence corresponding to the given state of UCI may be selected from the different sequences for transmission of UCI in the short PUCCH in accordance with the present disclosure.
  • a base sequence may be generated, and then a respective cyclic shift may be performed on the base sequence to generate each sequence of the plurality of different sequences such that different cyclic shifts are used to generate the plurality of different sequences.
  • multiple base sequences may be generated, and a same cyclic shift may be performed on each of the plurality of base sequences to generate a respective sequence of the plurality of different sequences.
  • a respective peak-to-average-power-ratio (PAPR) of each sequence of the plurality of different sequences may be determined.
  • PAPR peak-to-average-power-ratio
  • one of the different sequences having the respective PAPR lower than a first threshold (e.g., a low threshold) and one or more cross-correlation properties better than a second threshold (e.g., a high threshold) may be selected, so that a sequence with low PAPR and good cross-correlation properties may be selected.
  • a first threshold e.g., a low threshold
  • a second threshold e.g., a high threshold
  • the different sequences may include one or more Constant Amplitude Zero Auto Correlation (CAZAC) sequences, one or more Zadoff-Chu sequences, one or more computer-generated sequences, or a combination thereof.
  • CAZAC Constant Amplitude Zero Auto Correlation
  • the different sequences may be implemented by using a same sequence in different physical resource blocks (PRBs) or different sequences in different PRBs.
  • PRBs physical resource blocks
  • the selected sequence when the PUCCH is of a two-symbol PUCCH format, the selected sequence may be transmitted in the short PUCCH using frequency hopping or orthogonal cover code (OCC) .
  • OCC orthogonal cover code
  • the UE when transmitting through multiple antennas, the UE may transmit the selected sequence in the short PUCCH through multiple antennas using different cyclic shifts, different base sequences, different PRBs, or a combination thereof.
  • a second format of the proposed one-symbol PUCCH formats is herein referred as frequency division multiplexing (FDM) of RS and UCI sequences.
  • FDM frequency division multiplexing
  • both UCI and RS may be transmitted.
  • both UCI and RS may be transmitted in the same RB and multiplexed by FDM.
  • the US and UCI may use the same cyclic shift as follows:
  • ⁇ may be a parameter of the cyclic shift.
  • the transmitting signal of RS and UCI may be expressed as follows:
  • s may be a quadrature amplitude modulation (QAM) symbol modulated according to ACK/NACK bits.
  • QAM quadrature amplitude modulation
  • FIG. 2 illustrates an example design 200 as well as example scenario 250 and 280 in accordance with an implementation of the present disclosure.
  • Part (A) of FIG. 2 shows example design 200
  • part (B) of FIG. 2 shows example scenarios 250 and 280 of RB allocation and RB selection.
  • information of ACK/NACK may be taken as input for QAM modulation to provide symbols as an input to generate transmitting signal x UCI via phase-shifted base sequence.
  • Reference signal is also taken as input to generate transmitting signal x RS via phase-shifted base sequence.
  • Each of the signals x UCI and x RS may be allocated into multiple resource elements (RE) within each RB, as shown in example scenario 250. Then, scheduling requests may be used for RB selection to provide which may be used for RB allocation, as shown in example scenario 280.
  • RE resource elements
  • SR is used to determine the RB set and ACK/NACK is used to determine the symbol s.
  • the base sequence is fixed, and cyclic shift ⁇ is fixed.
  • SR and ACK may jointly be used to determine the following: RB set symbol s, base sequence and cyclic shift ⁇ .
  • the RS may be generated using a first sequence and the UCI may be generated using a modulation of a second sequence (or a product of the second sequence multiplied by the modulation) .
  • the UCI may be in one of multiple UCI states. A sequence from multiple different sequences, each of which representative of a respective one of the multiple UCI states, may be selected. Alternatively, a modulation scheme from multiple different modulation schemes, each of which representative of a respective one of the plurality of UCI states, may be selected. Then, the selected sequence or the UCI with the selected modulation scheme may be transmitted, using FDM, in the short PUCCH with the RS.
  • a third format of the proposed one-symbol PUCCH formats is herein referred as code division multiplexing (CDM) of RS and UCI sequences.
  • CDM code division multiplexing
  • both UCI and RS may be transmitted.
  • both UCI and RS may be transmitted in the same RB and multiplexed by FDM.
  • the RS and UCI may respectively have different cyclic shifts as follows:
  • the transmitting signal of RS and UCI may be expressed as follows:
  • s may be a QAM symbol modulated according to ACK/NACK bits, and x RS and x UCI may be transmitted in the same RB using CDM.
  • FIG. 3 illustrates an example design 300 and an example scenario 350 in accordance with an implementation of the present disclosure.
  • Part (A) of FIG. 3 shows example design 300
  • part (B) of FIG. 3 shows example scenario 350 of RB allocation.
  • information of ACK/NACK may be taken as input for QAM modulation to provide symbol s as an input to generate transmitting signal x UCI via phase-shifted base sequence.
  • Reference signal is also taken as input to generate transmitting signal x RS via phase-shifted base sequence.
  • Both of the signals x UCI and x RS may be summed together by summation for RB allocation. Then, scheduling requests may be used for RB selection to provide which may be used for RB allocation, as shown in example scenario 350.
  • PUCCH may also occupy multiple RBs.
  • the following example is provided in the context of two RBs, although the concept may be allowed to implementations in which PUCCH occupies more than two RBs.
  • the transmitting signal of RS and UCI may involve a first transmitting signal in a first RB and a second transmitting signal in a second RB.
  • the first transmitting signal in the first RB may be expressed as follows:
  • the second transmitting signal in the second RB may be expressed as follows:
  • the RS may be generated using a first sequence and the UCI may be generated using a modulation of a second sequence (or a product of the second sequence multiplied by the modulation) .
  • the UCI may be in one of multiple UCI states. A sequence from multiple different sequences, each of which representative of a respective one of the multiple UCI states, may be selected. Alternatively, a modulation scheme from multiple different modulation schemes, each of which representative of a respective one of the plurality of UCI states, may be selected. Then, the selected sequence or the UCI with the selected modulation scheme may be transmitted, using CDM, in the short PUCCH with the RS.
  • FIG. 4 illustrates an example design 400 and an example scenario 450 in accordance with an implementation of the present disclosure.
  • Part (A) of FIG. 4 shows example design 400
  • part (B) of FIG. 4 shows example scenario 450 of RB allocation.
  • information of ACK/NACK may be taken as input for QAM modulation to provide symbol s as an input to generate transmitting signal x data via phase-shifted base sequence.
  • Reference signal is also taken as input to generate transmitting signal x RS via phase-shifted base sequence.
  • the first transmitting signal in the first RB may be generated by summing signals x UCI and x RS by summation for RB allocation.
  • the second transmitting signal in the second RB may be generated by summing signals x UCI and x RS by summation for RB allocation.
  • scheduling requests may be used for RB selection to provide which may be used for RB allocation for the first and second transmitting signals, as shown in example scenario 450.
  • SR is used to determine the RB set and ACK/NACK is used to determine the symbol s.
  • the base sequence is fixed, and cyclic shift sequences d RS and d UCI are fixed.
  • SR and ACK may jointly be used to determine the following: RB set symbol s, base sequence and cyclic shift sequences d RS and d UCI .
  • PUCCH with multiple transmitting antennas may be designed in a way that two criteria are satisfied.
  • the first criterion is that the procedure for PUCCH with multiple transmitting antennas is similar with that for PUCCH with one transmitting antenna.
  • the second criterion is that the signal at different antennas is generated using different values of base sequence cyclic shift ⁇ , and RB set
  • the UCI may determine the following information: base sequence cyclic shift ⁇ t , and RB index (es) in which the PUCCH is transmitted.
  • a cyclic shift sequence d t may be generated according to ⁇ t .
  • the transmitting signal of antenna t may be expressed as follows:
  • the transmitting signal x t may be put in all RBs in RB set
  • FIG. 5 illustrates an example design 500 and an example scenario 550 in accordance with an implementation of the present disclosure.
  • Part (A) of FIG. 5 shows example design 500
  • part (B) of FIG. 5 shows example scenario 550 of how the transmitting signal x t may be put in all RBs in a RB set
  • information of ACK/NACK and SR may be taken as input for cyclic shift selection (to provide ⁇ t ) , base sequence selectin (to provide ) and RB selection (to provide ) .
  • the output may be the transmitting signal x t .
  • the transmitting signal x t may then be put in RB set with RB allocation as shown in example scenario 550.
  • a two-symbol PUCCH may be designed using schemes and concepts described above with respect to one-symbol PUCCH, along with either of orthogonal cover code (OCC) and frequency hopping.
  • OCC orthogonal cover code
  • UE user equipment
  • frequency hopping the UE may transmit the two-symbol PUCCH in one or more RBs in a first OFDM symbol and in one or more other RBs in a second OFDM symbol.
  • the UCI may determine the sequence to transmit without transmitting RS. Moreover, the UCI may determine the following information: base sequence cyclic shift ⁇ , and RB index (es) in which the PUCCH is transmitted. Additionally, the UE may be assigned an OCC ( ⁇ 0 or ⁇ 1 ) by the base station (e.g., eNB, gNB or TRP) , as follows:
  • a cyclic shift sequence may be generated according to ⁇ as follows:
  • the transmitting signal in a RB and one OFDM symbol may be expressed as follows:
  • ⁇ means elementwise product
  • OCC may be used to generate transmitting signal in a RB and two OFDM symbols expressed as follows:
  • ⁇ n is the OCC assigned by the base station.
  • the transmitting signal x may be put in all RBs in RB set
  • frequency hopping may differ from OCC in at least two ways. Firstly, there may be no OCC assigned in frequency hopping. Secondly, in frequency hopping, the UCI may determine RB set for symbol 0 and for symbol 1.
  • FIG. 6 illustrates example scenario 600 and example scenario 650 in accordance with an implementation of the present disclosure.
  • Part (A) of FIG. 6 shows example scenario 600 of allocating two OFDM symbols to RB set
  • Part (B) of FIG. 6 shows example scenario 650 of sequence selection using frequency hopping.
  • FIG. 7 illustrates an example system 700 having at least an example apparatus 710 and an example apparatus 720 in accordance with an implementation of the present disclosure.
  • apparatus 710 and apparatus 720 may perform various functions to implement schemes, techniques, processes and methods described herein pertaining to short PUCCH in NR networks, including the various schemes, concepts and examples described above with respect to FIG. 1–FIG. 6 described above as well as processes 800, 900 and 1000 described below.
  • Each of apparatus 710and apparatus 720 may be a part of an electronic apparatus, which may be a base station (BS) or a user equipment (UE) , such as a portable or mobile apparatus, a wearable apparatus, a wireless communication apparatus or a computing apparatus.
  • BS base station
  • UE user equipment
  • each of apparatus 710and apparatus 720 may be implemented in a smartphone, a smartwatch, a personal digital assistant, a digital camera, or a computing equipment such as a tablet computer, a laptop computer or a notebook computer.
  • Each of apparatus 710and apparatus 720 may also be a part of amachine type apparatus, which may be an IoT apparatus such as an immobile or a stationary apparatus, a home apparatus, a wire communication apparatus or a computing apparatus.
  • each of apparatus 710and apparatus 720 may be implemented in a smartthermostat, a smart fridge, a smart door lock, a wireless speaker or a home control center.
  • apparatus 710 and/or apparatus 720 may be implemented in an eNodeB in a LTE, LTE-Advanced or LTE-Advanced Pro network or in a gNB or transmit-and-receive point (TRP) in a 5G network, an NR network or an IoT network.
  • each of apparatus 710and apparatus 720 may be implemented in the form of one or more integrated-circuit (IC) chips such as, for example and without limitation, one or more single-core processors, one or more multi-core processors, or one or more complex-instruction-set-computing (CISC) processors.
  • IC integrated-circuit
  • CISC complex-instruction-set-computing
  • each of apparatus 710and apparatus 720 may be implemented in or as a BS or a UE.
  • Each of apparatus 710and apparatus 720 may include at least some of those components shown in FIG. 7 such as a processor 712 and a processor 722, respectively, for example.
  • Each of apparatus 710and apparatus 720 may further include one or more other components not pertinent to the proposed scheme of the present disclosure (e.g., internal power supply, display device and/or user interface device) , and, thus, such component (s) of apparatus 710 and apparatus 720 are neither shown in FIG. 7 nor described below in the interest of simplicity and brevity.
  • components not pertinent to the proposed scheme of the present disclosure e.g., internal power supply, display device and/or user interface device
  • each of processor 712 and processor 722 may be implemented in the form of one or more single-core processors, one or more multi-core processors, or one or more CISC processors. That is, even though a singular term “a processor” is used herein to refer to processor 712 and processor 722, each of processor 712 and processor 722 may include multiple processors in some implementations and a single processor in other implementations in accordance with the present disclosure.
  • each of processor 712 and processor 722 may be implemented in the form of hardware (and, optionally, firmware) with electronic components including, for example and without limitation, one or more transistors, one or more diodes, one or more capacitors, one or more resistors, one or more inductors, one or more memristors and/or one or more varactors that are configured and arranged to achieve specific purposes in accordance with the present disclosure.
  • each of processor 712 and processor 722 is a special-purpose machine specifically designed, arranged and configured to perform specific tasks including those pertaining to short PUCCH in NR networks in accordance with various implementations of the present disclosure.
  • apparatus 710 may also include a transceiver 716 coupled to processor 712.
  • Transceiver 716 may be capable of wirelessly transmitting and receiving data, information and/or signals.
  • apparatus 720 may also include a transceiver 726 coupled to processor 722.
  • Transceiver 726 may include a transceiver capable of wirelessly transmitting and receiving data, information and/or signals.
  • apparatus 710 may further include a memory 714coupled to processor 712 and capable of being accessed by processor 712 and storing data therein.
  • apparatus 720 may further include a memory 724coupled to processor 722 and capable of being accessed by processor 722 and storing data therein.
  • RAM random-access memory
  • DRAM dynamic RAM
  • SRAM static RAM
  • T-RAM thyristor RAM
  • Z-RAM zero-capacitor RAM
  • each of memory 714 and memory 724 may include a type of read-only memory (ROM) such as mask ROM, programmable ROM (PROM) , erasable programmable ROM (EPROM) and/or electrically erasable programmable ROM (EEPROM) .
  • ROM read-only memory
  • PROM programmable ROM
  • EPROM erasable programmable ROM
  • EEPROM electrically erasable programmable ROM
  • each of memory 714 and memory 724 may include a type of non-volatile random-access memory (NVRAM) such as flash memory, solid-state memory, ferroelectric RAM (FeRAM) , magnetoresistive RAM (MRAM) and/or phase-change memory.
  • NVRAM non-volatile random-access memory
  • FIG. 8 illustrates an example process 800 in accordance with an implementation of the present disclosure.
  • Process 800 may represent an aspect of implementing the proposed concepts and schemes such as one or more of the various schemes, concepts and examples described above with respect to FIG. 1 –FIG. 7. More specifically, process 800 may represent an aspect of the proposed concepts and schemes pertaining to short PUCCH in NR networks. For instance, process 800 may be an example implementation, whether partially or completely, of the proposed schemes, concepts and examples described above for short PUCCH in NR networks.
  • Process 800 may include one or more operations, actions, or functions as illustrated by one or more of blocks 810 and 820. Although illustrated as discrete blocks, various blocks of process 800 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation.
  • Process 800 may be executed in the order shown in FIG. 8 or, alternatively in a different order.
  • the blocks/sub-blocks of process 800 may be executed iteratively.
  • Process 800 may be implemented by or in apparatus 710 and/or apparatus 720 as well as any variations thereof. Solely for illustrative purposes and without limiting the scope, process 800 is described below in the context of apparatus 710 being a UE and apparatus 720 being a network node of a wireless communication network (e.g., an NR network) .
  • Process 800 may begin at block 810.
  • process 800 may involve processor 712 of apparatus 710as a UE configuring a short PUCCH comprising one or two OFDM symbols (e.g., the short PUCCH is of either the one-symbol format or the two-symbol format as described above) .
  • the short PUCCH may involve processor 712 selecting a sequence from a plurality of different sequences each of which representative of a respective UCI.
  • Process 800 may proceed from 810 to 820.
  • process 800 may involve processor 712 transmitting, via transceiver 716, the selected sequence in the short PUCCH to apparatus 720.
  • the selected sequence in the short PUCCH may be transmitted to apparatus 720, as a network node of a wireless communication network, without a reference signal (RS) .
  • RS reference signal
  • process 800 may involve processor 712 generating a base sequence. Additionally, process 800 may involve processor 712 performing a respective cyclic shift on the base sequence to generate each sequence of the different sequences such that different cyclic shifts are used to generate the different sequences.
  • process 800 may involve processor 712 generating multiple base sequences. Moreover, process 800 may involve processor 712 performing a same cyclic shift on each of the multiple base sequences to generate a respective sequence of the different sequences.
  • the different sequences may include a same sequence in different physical resource blocks (PRBs) or different sequences in different PRBs.
  • PRBs physical resource blocks
  • a respective PAPR of each sequence of the plurality of different sequences may be lower than a first threshold (e.g., a low threshold) or one or more cross-correlation properties of each sequence of the plurality of different sequences are better than a second threshold (e.g., a high threshold) , so that a sequence with low PAPR and good cross-correlation properties may be selected or otherwise used.
  • the plurality of different sequences may include one or more CAZAC sequences, one or more Zadoff-Chu sequences, one or more computer-generated sequences, or a combination thereof.
  • the PUCCH may include two OFDM symbols.
  • process 800 in transmitting the selected sequence in the short PUCCH, may involve processor 712 transmitting the selected sequence in the short PUCCH using frequency hopping or orthogonal cover code (OCC) .
  • OCC orthogonal cover code
  • process 800 in transmitting the selected sequence in the short PUCCH, may involve processor 712 transmitting the selected sequence in the short PUCCH through multiple antennas using different cyclic shifts, different base sequences, different PRBs, or a combination thereof.
  • FIG. 9 illustrates an example process 900 in accordance with an implementation of the present disclosure.
  • Process 900 may represent an aspect of implementing the proposed concepts and schemes such as one or more of the various schemes, concepts and examples described above with respect to FIG. 1 –FIG. 7. More specifically, process 900 may represent an aspect of the proposed concepts and schemes pertaining to short PUCCH in NR networks. For instance, process 900 may be an example implementation, whether partially or completely, of the proposed schemes, concepts and examples described above for short PUCCH in NR networks.
  • Process 900 may include one or more operations, actions, or functions as illustrated by one or more of blocks 910 and 920 as well as sub-blocks 912 and 914.
  • Process 900 may be implemented by or in apparatus 710 and/or apparatus 720 as well as any variations thereof. Solely for illustrative purposes and without limiting the scope, process 900 is described below in the context of apparatus 710 being a UE and apparatus 720 being a network node of a wireless communication network (e.g., an NR network) .
  • Process 900 may begin at block 910.
  • process 900 may involve processor 712 of apparatus 710 as a UE configuringa short PUCCH comprising one or two OFDM symbols (e.g., the short PUCCH is of either the one-symbol format or the two-symbol format as described above) .
  • the short PUCCH may involve processor 712 performing a number of operations represented by sub-blocks 912, 914 and 916 (or 918) to be described below.
  • Process 900 may proceed from 910 to 920.
  • process 900 may involve processor 712 transmitting, via transceiver 716 using frequency division multiplexing (FDM) , the selected sequence or the UCI with the selected modulation scheme in the short PUCCH with a RS.
  • FDM frequency division multiplexing
  • process 900 may involve processor 712 generating the UR using a first sequence.
  • Process 900 may proceed from 912 to 914.
  • process 900 may involve processor 712 generating UCI using a modulation of a second sequence (or a product of the second sequence multiplied by the modulation) .
  • the UCI may be in one of multiple UCI states.
  • Process 900 may proceed from 914 to either 916 or 918.
  • process 900 may involve processor 712 selecting a sequence from a number of different sequences each of which representative of a respective one of the multiple UCI states.
  • process 900 may involve processor 712 selecting a modulation scheme from a number of different modulation schemes each of which representative of a respective one of the multiple UCI states.
  • process 900 may involve processor 712 generating a base sequence. Additionally, process 900 may involve processor 712 performing a respective cyclic shift on the base sequence to generate each sequence of the different sequences such that different cyclic shifts are used to generate the different sequences.
  • process 900 may involve processor 712 generating multiple base sequences. Moreover, process 900 may involve processor 712 performing a same cyclic shift on each of the multiple base sequences to generate a respective sequence of the different sequences.
  • the different sequences may include a same sequence in different PRBs or different sequences in different PRBs.
  • a respective PAPR of each sequence of the plurality of different sequences may be lower than a first threshold (e.g., a low threshold) or one or more cross-correlation properties of each sequence of the plurality of different sequences are better than a second threshold (e.g., a high threshold) , so that a sequence with low PAPR and good cross-correlation properties may be selected or otherwise used.
  • the plurality of different sequences may include one or more CAZAC sequences, one or more Zadoff-Chu sequences, one or more computer-generated sequences, or a combination thereof.
  • the PUCCH may include two OFDM symbols.
  • process 900 may involve processor 712 transmitting the selected sequence in the short PUCCH using frequency hopping or OCC.
  • process 900 may involve processor 712 transmitting the selected sequence in the short PUCCH through multiple antennas using different cyclic shifts, different base sequences, different PRBs, or a combination thereof.
  • FIG. 10 illustrates an example process 1000 in accordance with an implementation of the present disclosure.
  • Process 1000 may represent an aspect of implementing the proposed concepts and schemes such as one or more of the various schemes, concepts and examples described above with respect to FIG. 1 –FIG. 7. More specifically, process 1000 may represent an aspect of the proposed concepts and schemes pertaining to short PUCCH in NR networks. For instance, process 1000 may be an example implementation, whether partially or completely, of the proposed schemes, concepts and examples described above for short PUCCH in NR networks.
  • Process 1000 may include one or more operations, actions, or functions as illustrated by one or more of blocks 1010 and 1020 as well as sub-blocks 1012 and 1014.
  • Process 1000 may be implemented by or in apparatus 710 and/or apparatus 720 as well as any variations thereof. Solely for illustrative purposes and without limiting the scope, process 1000 is described below in the context of apparatus 710 being a UE and apparatus 720 being a network node of a wireless communication network (e.g., an NR network) .
  • Process 1000 may begin at block 1010.
  • process 1000 may involve processor 712 of apparatus 710 as a UE configuringa short PUCCH comprising one or two OFDM symbols (e.g., the short PUCCH is of either the one-symbol format or the two-symbol format as described above) .
  • the short PUCCH may involve processor 712 performing a number of operations represented by sub-blocks 1012, 1014 and 1016 (or 1018) to be described below.
  • Process 1000 may proceed from 1010 to 1020.
  • process 1000 may involve processor 712 transmitting, via transceiver 716 using code division multiplexing (CDM) , the selected sequence or the UCI with the selected modulation scheme in the short PUCCH with a RS.
  • CDM code division multiplexing
  • process 1000 may involve processor 712 generating the UR using a first sequence. Process 1000 may proceed from 1012 to 1014.
  • process 1000 may involve processor 712 generating UCI using a modulation of a second sequence (or a product of the second sequence multiplied by the modulation) .
  • the UCI may be in one of multiple UCI states.
  • Process 1000 may proceed from 1014 to either 1016 or 1018.
  • process 1000 may involve processor 712 selecting a sequence from a number of different sequences each of which representative of a respective one of the multiple UCI states.
  • process 1000 may involve processor 712 selecting a modulation scheme from a number of different modulation schemes each of which representative of a respective one of the multiple UCI states.
  • process 1000 may involve processor 712 generating a base sequence. Additionally, process 1000 may involve processor 712 performing a respective cyclic shift on the base sequence to generate each sequence of the different sequences such that different cyclic shifts are used to generate the different sequences.
  • process 1000 may involve processor 712 generating multiple base sequences. Moreover, process 1000 may involve processor 712 performing a same cyclic shift on each of the multiple base sequences to generate a respective sequence of the different sequences.
  • the different sequences may include a same sequence in different PRBs or different sequences in different PRBs.
  • a respective PAPR of each sequence of the plurality of different sequences may be lower than a first threshold (e.g., a low threshold) or one or more cross-correlation properties of each sequence of the plurality of different sequences are better than a second threshold (e.g., a high threshold) , so that a sequence with low PAPR and good cross-correlation properties may be selected or otherwise used.
  • the plurality of different sequences may include one or more CAZAC sequences, one or more Zadoff-Chu sequences, one or more computer-generated sequences, or a combination thereof.
  • the PUCCH may include two OFDM symbols.
  • process 1000 in transmitting the selected sequence in the short PUCCH, process 1000 may involve processor 712 transmitting the selected sequence in the short PUCCH using frequency hopping or OCC.
  • process 1000 in transmitting the selected sequence in the short PUCCH, may involve processor 712 transmitting the selected sequence in the short PUCCH through multiple antennas using different cyclic shifts, different base sequences, different PRBs, or a combination thereof.
  • any two components so associated can also be viewed as being “operably connected” , or “operably coupled” , to each other to achieve the desired functionality, and any two components capable of being so associated can also be viewed as being “operably couplable” , to each other to achieve the desired functionality.
  • operably couplable include but are not limited to physically mateable and/or physically interacting components and/or wirelessly interactable and/or wirelessly interacting components and/or logically interacting and/or logically interactable components.

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Abstract

L'invention concerne des concepts et des exemples se rapportant à un canal de commande de liaison montante physique court (PUCCH) dans des réseaux NR (New Radio). Un processeur d'un équipement d'utilisateur (UE) configure un PUCCH court comprenant un ou deux symboles de multiplexage par répartition orthogonale de la fréquence (OFDM). Lors de la configuration du PUCCH court, le processeur sélectionne une séquence parmi une pluralité de séquences différentes dont chacune est représentative d'informations de commande de liaison montante (UCI) respectives. La séquence sélectionnée est transmise par le processeur à un nœud d'un réseau de communication sans fil, dans le PUCCH court.
EP17850296.9A 2016-09-14 2017-09-14 Pucch court dans des réseaux nr Withdrawn EP3504917A4 (fr)

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US201662394271P 2016-09-14 2016-09-14
PCT/CN2017/101759 WO2018050094A1 (fr) 2016-09-14 2017-09-14 Pucch court dans des réseaux nr

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WO2018050094A1 (fr) 2018-03-22
TWI667934B (zh) 2019-08-01
CN108207120A (zh) 2018-06-26
TW201813429A (zh) 2018-04-01
US20180076917A1 (en) 2018-03-15

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